1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82bead616ec7bb81ccfc8cb4cb8b00710ae965a344ff1ec6f4a62ccdaf2ab450. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7ee22342-be1d-4202-8433-e62f6cfbba28.json and https://artists.proofprofile.net/proofs/artist/7ee22342-be1d-4202-8433-e62f6cfbba28.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Uns're Allerschönsten Jahre - Das Beste Vom Besten
Judith & Mel in Liebe: Die Liebe siegt - das Glück zu Zweit
Schönste Balladen: Das Gefühl, das man Liebe nennt - Du für immer
Judith & Mel in Partylaune: Wir geben 'ne Party - bei uns geht's rund
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1718a2faef5a4c62f10f13e95c445cae5a4c0b14e23f59274eeb5bd4a8981098. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPE29700381.
Judith & Mel im Norden: Land im Norden - da bin ich Zuhaus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55bee2ceb46ed34f7c2cb83a084d70468475336135af9037278dd8b375422ea5. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPE29100453.
Fahr mich in die Ferne mein blonder Matrose
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b7b755c71ffe4ddc1736c0b0a94f1c8847f314a49f0f7f47744713611846eb0. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPE29200126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677decf7b95a0ba67fc1f6c7ea0c480011ed7615479c8f429333b154231a47af. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPE29100467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f1538ec6038b3a491f25015aacbf77657c64e34d4b3707f53e62a157dbd01b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPE29100167.
Judith & Mel in Familie: Wir sind Deine Eltern - Liebe, Glück und Geborgenheit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e514202eef523bb945ee691646e0682c4eb132127fd1a87f18f9f7961485f5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPE29800396.
Judith & Mel im Walzerschritt: Walzer der Liebe
Judith & Mel in der Heimat: Wir sind stolz auf uns're Heimat
Judith & Mel in Besinnlichkeit: Alles wird gut - Glaube, Hoffnung, Liebe
Die 22 besten... Hits von: Judith & Mel (Musik auf deutsch)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe34836c771616f691fd4fba62641644bb9e4f8291faa237167da7466e04b0bc. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPE29900086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d76e5dd150797900de8c28b88d1c1c5a38d1e2a5bbbcdbf9d386c04358fb714. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPE29300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5938c00dc938cb57b2ae6af4526b294b2bf6b5f5b5c4208e4f4dbf41269d84. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPE29700084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09be47ac7c41bc46ee93d1858a2c7a38a6190749570344acad5dec2d2c0759e8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPE29800072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e8d4bd738ccd648bde5d702da2daee8325976fbfec470785d94a980e222b81. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPE29200293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913a4841169a6b59cd04c4be4afafaec254394a49a8a5a8bc2810e692e2885ed. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPE29100166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5ef774aeb3ad1a96f9039d4bef011f3e28c768b110b3531b58e2d23d46e150. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPE21400489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7000cd53f1e79ee8d0434902bd9db7dc73e30d1652d1c7f774ea52249ba77e. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPE21700500.
Schlager für Alle präsentiert: Judith & Mel